Ruilding block



Patented Mar. 17, 1925.

, UNITED STATES 1,530,196 PATENT orries...

ALVIN NORRIS, QF.MA1\TIT.OWOC, WISCONSIN.

BUILDING BLOCK.

Application filed April 14, 1924. LSerialNo, "706,605.

ed. there has, in general, been no means for n'eventing lateral motion. The only bonding between successive blocks has been the mortar, and, therefore, relatively small lateral forces have readily produced'cnacks in a wall. Attempts at interlocking have been made by using projections, grooves, or'

sunilar expedients, but these attempts have resulted in impractical and costly constructions, and in addition, have not resulted in blocks which can be easily handled and which may be relied upon.

This invention is designed to overcome the above noted defects, and objects ofsuch invention are to provide a building block which is free from easily broken projections, which is of the same general size as the ordinary blocks, which'may be handled. by an unskilled laborer, which will securely bind or look successive portions of a wall together, and which is so constructed that braced and interlocked corners may be readily formed in a wall.

Embodiments of the invention are shown in the accompanying drawing, in which Figure 1 is a perspective view of a corner portion of a wall.

Figure 2 is a View of one of the corner blocks.

In building the wall, aplurality of blocks 1 are employed. These blocks, as may be seen, particularly from Figure 1, are formed of two half sections which are of uniform width and have vertical front and rear and end faces. These half sections, however, slope towards each other to form a dihedral angle. In order to adapt these blocks to a smooth flat footing, for instance, a plurality of double wedge shaped blocks 2 are employed and are arranged, as shown in Figure 1, with their narrow edges abutting and with their flat elongated faces in contact with the footing.

In the corners it is preferable to employ a single Wedge shaped block, as indicated at side of the corner,to employ a second single wedge shaped block 4. This insures a flat bottom for-thewall. 'lhereafter, .the wall built up by successive tiers of blocks '1. :It

is to be noted that in alternate tiers, the blocks 1. are inverted so as to secure an overlapand a bonding or tying action between successive blocks. the wall is :tinrshed by means of the double The upper "portion of wedge shaped blocks 2, as may be seen from Figure 1. i

It is to be noted, however, that at the corner, a diiilculty arises in the use of the blocks 1, consequently corner blocks are provided, as shown in Figure 2. Thesecoiner blocks comprise two half sections oneolf which, as indicated at slopes downwardly towards one side of the elongated block. The other half section 6 slopes downwardly towards an end of the elongated block. It is to be noted that in Figure 2 an imaginary rectangular solid has been indicated by imaginary lines, so that the slope ofthe half sections maybe easily seen. It is to be noted that the inner upper edge-7 of the half section (3 lies in the same horizontal plane as the side edge 8 of the half section 5. These half sections are of uniform width throughout and triangular shoulders 9 are formed at the plane of union of these half sections.

This figure shows the block turned around with reference to Figure 2. One of these corner blocks is shown in Figure 1. It will be seen that the member or half section 6 accurately conforms to the slope of the .slope of the block 1 in the right hand side of the wall. The shoulders 9 securely lock the parts against endwise shifting.

3 in Figure 1,:and as shown in the ileftliand I It is to be noted that each alternate tier by the slanting lines of union between successive blocks when this invention is practised, and consequently an ornamental and attractive wall is provided. It is to be particularly noted that cracks will not form in this wall for the reason that any forces tending to separate portions of the wall are resisted by overlapping interlocking por tions of the blocks, whereas, with an ordinary wall, the mortar alone is relied upon.

Although the invention has been described in considerable detail, it is tobe understood that the invention may be variously embodied and is, therefore, to be limited only as claimed.

' I claim:

1. A building block comprising two parallelepipeds integrally joined and having one vertical edge common throughout its extent, one of said parallelepipeds slanting downwardly towards one side and the other parallelepiped slanting downwardly towards one end of said block, said parallelepipeds having triangular shoulders at their plane of union with the apeXes of the triangles at the upper and lower ends of the common vertical edge.

2. A building block having a generally rectangular shape, said block being formed of two half sections, one of said half sections sloping downwardly towards one side of the block and the other half section sloping downwardly towards one end of said block.

3. A building block having a generally rectangular shape, said block being formed of two half sections of uniform thickness, one of said half sections sloping downwardly towards one side of the block and the other half section sloping downwardly towards one end of said block.

f. A building block having a generally rectangular shape, said block being formed of two half sections of uniform thickness, one of said half sections sloping downward- 1y towards one side of the block and the other half section sloping downwardly towards one end of said block, said block having triangular shoulders at the plane of union of said half sections.

In testimony that I claim the foregoing I have hereunto set my hand at Manitowoc, in the county of Manitowoc and State of Wisconsin.

ALVIN NORRIS. 

